Sand cutting and conveying machine



Jan. 10, 1928.

1,655,567 E. A. RICH, JR

SAND CUTTING AND CONVEYING MACHINE Original Fi led Sept. 8. 1921 3 Sheets-Sheet 1 Jan. 10, 1928.

E. A. RICH, JR

SAND CUTTING AND CONVEYING MACHINE S Sheets-Sheet 2 Original Filed Sept. 8. 1921 Jan. 10, 1928. 1,655,567

E. A. RICH, JR

SAND cuTTiNG AND CONVEYING MACHINE Original Filed Sept. 8. 1921 3 Sheets-Sheet 3 wig 56: h q

Patented Jan. 10, 1928.

omren STATES PATENT OFF-ICE.

ELMER a, RICH, Jn, or winnnrrn, ILLINOIS, ASSIGNORTO THE AME ICA FOUNDRY EQUIPMENT COMPANY, or NEW YORK, Y., A CORPORATION on D LAWARE SAND CUTTING AND CONVEYING MACHINE;

Application filed September 8, wen-Serial 1105492182. Renewed March 18, 1927.

My invention relates to machinery for treating sand for foundries and for similar purposes.

One of the objects of the invention is to provide a-machine whichcan cut, riddle and pile the sand. Y Another object of the invention is to permitthe ready and quick arrangement of the machine to perform any desired one of its different functions. 7

Another object of the invention is to secure simplicity and compactness in construetion. I

Another object of the invention is to arrange for the ready and eiiect-ive operation and control oi the various mechanisms 1nvolved inthe operation o't'the machine.

in the accompanying drawings Fig". 1 is a side elevation of a machine of the'class specified embodying my invention;

Fig.2 is anend elevation looking toward the right hand end or the machine in Fig. 1'; a

Fig. 3 is a plan view of the machine. Referring tot-he drawings I show a-n iachinc having front wheels 1 and rear wheels 2 and a body frame having members 3-3 connecting and supported by said whee s. Both the front and rear wheels are mounted on individual axes and the front wheels are provided with 'forks lf- 1, the axes 5 of which are connected together by meansot a cross bar 6, and a handle 7 permits the art justment or turning of the frontwheels for steering the machine. The rear wheels 2 are driven to propelthe machine in either direction, The driving mechanism will be described later on.

. p The machine is provided with means for cutting, mixing and piling'the sand, as 101' example a rotary cutter 8 having transverse- 1y extendingcutting blades 9. This cutting device Ema-y be employed to cut the sand by rotating it to throw the sand in a relatively backward direction when the machine is going from left to right (Fig. 1). It may also be used to pile the sand by throwing the sand forwardly when the machine moves from right to left (Fig. 1). This cutting andpiling device 8 is mounted'so as to permit it to'be raised andlowered so as-to place it in position close to the flooror ground and also to' lift it materially above the same. v

As an arrangement for permitting the vertical adjustment of the cutting device'8, said device is mountedat the end of side beams :16

which run to and are pivoted on a main-driving axis 17. Also flexible connectors 18 are attached to the ends of the cutting device 8 and passed over overhead pulleys 19 and thence down to a reel 20 having a handle 21 bywhlch the connectors 18 may be wound or unwound and the cutting device 8 raisedand lowered, the latter swinging about its pivotalaxis 17. The rotary cutting devices is driven'by a sprocket chain 23 driven from the shaft 17, the latter being driven by. a

pinion 24: meshing with a gear 25 on the shatt 17, the pinion 24ebe1ng on the driving shaft of the power generator, preferably an 7 electric motor 26. By turning the reel. 20 by its handle 21, cutting and piling-device 8 maybe raised and lowered into and out of operative position, and said device may be rotated in either direction by motor 26.

Mechanism for riddling the sand is also provided. This may consist of a traveling conveyor 10 for elevating the sand and a vibratory support or hopper 51 arranged to receive thesand elevated by traveling conveyor or elevator 10. The vibration of support or hopper 51 causes sand dumped thereon to be shaken down so that it falls 'uponthefioor or other suitable place, whereas the rails, gangers, etc. remain onthe support or hop per 51, thereby e-fiectively riddling the sand.

The tavelling conveyor or elevator 10 is n'iounted so that it can be raised and lowered to permit ot its lower on d being placed close to the ground and also .to permit the whole device to be elevated well. out of the way; Preterably arrangementismade so that the elevator 10 and cutter Smay be alternately placed in substantially the same operative position, either'one or the'other being so located, ac cording to the'one it is desired to operate. The conveyor includes buckets 11 that are hinged at their upper and rear margins to the conveyorchain to permit the chain to travel around the sprocket wheels 'at 'thc ends o'tthe conveyor. Vhen the buckets are loaded, the rear sides thereof lie againstthe chain as the buckets rise.

As an arrangement for raising and lowering the elevator 10, '1 show flexible'connectors 28 connected withblocks 29 on said elevator,-the connectors 28 passingover pulleys 30 and 31 and thence down upon and =-over a -ree1"32*by which the connectors 28 may be wound and unwound to =raise.and

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lower the conveyor. The upper end of the conveyor is pivotally connected at 34 with swinging arms 35 pivoted at 86 by which the upper end of the conveyor will swing upwardly. about the axis 86. The conveyor is driven by means of a sprocket chain connected with the upper end of the conveyor and also connected with the shaft 86 from which communication is made by sprocket chain ll to the driving shaft 17. This driving connection permits the adjustment of the.

conveyor just as the sprocket chain 23 permits the adjustment of the mixer 8.

The machine is driven by means of sprocket chains l2 connected with the large wheels 2 and also connected with a cross shaft 4C3 which is in turn connected by sprocket chain 44: with an idle shaft 45 driven by the driving shaft 17. A clutch 48 is provided for the driving mechanism for the cutting cylinder, the operation of this clutch permitting said driving mechanism to be thrown into and out of operation. A differential 49 is provided for the mechanism for driving the main driving wheels 2. A clutch 50 is provided for the anechanism for driving the traveling con veyor, by which said mechanism may be thrown into and out of operation to oper ate said conveyor. The'handle 21 may be used either to elevate and lower the rotary cutting device or cylinder 8, or to elevate and lower the traveling conveyor. The one handle is used for both reels and the two reels are close enough together so that another handle coud not be used, whereby one of said mechanisms is properly adjusted before the other is adjusted.

WVith reference to the vibratory support or hopper 51, the front end of this hopper is preferably lower than the rear end, so

that the sand may slide forwardly and be dumped in any desired place. As an ar rangement for vibrating or agitating the member 51, I show mechanism comprising a connecting rod 52 operated by an eccentric on the shaft 17 and connected with a bell crank 53 which is connected by a link 5% with the bracket 55 on the under side of the hopper 51. Thus the rotation of the shaft 17 operates to vibrate vertically the rear end of said member 51. When the conveyor is not in use, it is desired to lock the hopper against vibration, and to this end there is shown a pivoted lever 56 provided with a roller 57 which may be swung up against the under side of the hopper 51. A ratchet wheel 58 having a dog 59 will hold the lever 56 in any position to which it be adjusted and thereby hold the hopper 51 upwardly against vibration. The link 54 is disconnected from the bracket 55,

thereby disconnecting the trough from the vibrating mechanism to permit it to be held stationary.

Thus by using the rotary cutting member 8, the sand may be cut or piled or both; and by using the traveling conveyor or elevator 10, the sand may be riddled. Either one of these members may be used as desired. Thus by one machine I am able to secure all these operations.

it will be understood that changes and modifications may be made without departfrom the spirit of the invention.

What I claim is:

1. The combination with the machine frame, of a sand cutting device for cutting sand for fonndrv purposes mounted for vertical adjustment, flexible connectors forv raising and lowering the same, a reel for said flexible connectors, a traveling conveyor arranged .in a substantially vertical manner and mounted for vertical adjustment relatively to the machine frame, a hopper located to receive material lifted by the conveyor, sprocket chains for driving the cutting device and traveling conveyor, means for vibrating the receiving hopper and power generator for driving said sprocket chains and agitating mechanism.

2. A sand cutting machine comprising a carriage movable over a floor, a frame pivotally connected thereto, a cutting device mounted at the free end of said frame, a flexible connector connected with said frame for elevatin and lowering the cutting device, a reel for said connector, a traveling conveyor having a sliding connection with said carriage, driving mechanism whereby either the sand cutting device or the traveling conveyor may be driven selectively, and a riddling device adapted to receive sand lifted by the conveyor.

3. A sand cutting machine adapted for movement over a foundry floor having means for cutting sand on said floor for foundry purposes, and also having means for gathering said sand and lifting it from the floor, said sand. cutting and sand gathering means being mounted for adjustn'lent so as to perniit them to be moved into and out of substantially the same operative position. whereby either one or the other may be used in such operative position as desired.

4:. A machine of the class specified having mechanism for cutting sand for foundry purposes, and also having mechanism for gathering and lifting sand, said sand cutting and sand gathering mechanisms being mounted for adjustment to permit them to be moved into and out of substantially the same operative position, whereby one or the other may be used as desired.

. 5. A sand treating machine for use in foundries, comprising a rotary member provided with cutting blades for cutting sand for foundry purposes, and also having a riddling mechanism and conveying means for conveying sand to said riddling mechanism, and means for mounting said rotary cutting member and said conveying means so that either one or the other may be moved into an operative position to allow the use of one or the other as desired.

6, A sand cutting and treatingmachine comprising a chassis mounted on wheels for movement over a foundry floor, a cutting cylinder adjustably attached to said chassis, atraveling conveyor for gathering and rais ing sand adjustably attached to said chassis, and means for independentlyadjusting said cutting cylinder and said conveyor whereby they may be alternately placed in operative position for the treatment of material'upon said floor.

7. A sand. cutting and treating machine comprising a chassis mounted on Wheels for movement over a foundry floor, acutting cylinder adjustably attached to said chassis, a traveling conveyor for gathering and raising sand adjustably attached to said chassis, a screening mechanism adapted to receive sand from said conveyor, and means for independently adjusting said cutting cylinder and said conveyor whereby they may be alternately placed in operative position for thereto, a screening mechanism positioned to receive material elevatediby said conveyor, and means for independently and alternately adjusting said cut-ting cylinder and said conveyor into operative and inoperative positions whereby material upon said floor may be either operated upon by said cutting cylinder or may be elevated by said conveyor and deposited upon said screen.

9. A machine for treating fine material upon a foundry floor, comprising a chassis mounted for movement ther-eover, a cutting cylinder comprising a plurality of radlally extending cutting blades, a member pivot-v ally connected to said chassis, said cutting cylinder being rotatively mounted upon said member, means for causing pivotal movement of said member whereby said cutting cylinder may be adjusted into operative or inoperative position, a conveyor system comprising a plurality of traveling buckets, a

support for said conveyor system andfmeans" tor raising and lowering said support where by the same may be brought into operative or inoperative position, a screen adapted to receive material from said conveyor, means for vibrating said screen whereby the screening operation is facilitated, the said 'ai oren'ientioned means for adjusting the cutting cylinder and'for adjusting the conveyor being operable alternately whereby the materia being acted upon may be either cut bysaid cylinder or may be elevated by said conveyor and screened.

In witness whereof, I hereunto subscribe my-name this 3rd day of August, A. D., 1921.

ELMER A. RICH, JR. 

